Storage-battery electrolyte



Patented May 5, 1923 EARL J RUEB, OF OKLAHOMA, OKLAHOMA, ASSIGNOR TOMID-STATE BATTERY MANU- FACTURIHG: CO. INC., OF OKLAHOMA, OKLAHOMA,COBYOBATION OF OKLAHOMA.

STORAGE-BATTERY ELECTROLYTE.

No Drawing.

To. all whom it may concern.-

Be it known that I, EARL J. Rum,a citizen of the UnitedStates, residingat Oklahoma city, in the county of Oklahoma and State of Gklahoma', haveinvented certain new and useful Improvements in Storage- BatteryElectrolytes, of which the following is a s ification.

Th1s invention relates to a novel storage batteryelectrolyte and-has asits object to provide an electrolyte which will possess decidedadvantages over the sulphuric acid solution heretofore employed. he useof sulphuric acid as an electrolyte in storage batteries is attended byvarious disadvantages as for example the corrosive action'of the acidsolution when coming into contact with metal parts, clothing, etc., andits disintegrating efi'ects upon the battery cells, connections, andseparators. Therefore'the nvention contemplates an electrolyte whichwill be non-corrosive and which, instead of having a disintegrating anddeteriorating vention, I will briefly describe the salientcharacteristics of the battery grid forming the subject matter of thesaid appl cation In producing the positive plate m accordance with saida plication, one pint of sni phuric acid 0 1200 specific gravity (Baum)is mixed with one ounce 0 liquid collodion and stirred until a whitescum appears on the surface after-which the scum is removed and to theclear mixture is added ounce of bicarbonateof soda and 1 ounce vofglycerine. .This mixture is then incorporated with a sufficient quantityof red lead to produce a stifi' or almost dr paste'which paste is filledinto the lead gri of the plate, and the plate smoothed by any of theusual Application tied January 28, 1921. Serial No. 440,745.

methods and dried in a warm place. The

plate thus produced is then charged at-for example ten amperes, whengrouped with two other positiveplates and four. negative plates, andwhile immersed in a solution of 3 ounces of bicarbonate of soda and 1ounce of aluminum sulphate in 1 quart of hard water. The negative platesare prepared in the same manner except that in the filler there isemployed pint of sulphuric acid of 1l50 specific gravity (Baum) mixedwith 2 ounces of lue.

r In preparing a battery embodying posit1ve and negative plates producedin the manner above briefly recited, for use in connection therewith ofthe electrolyte of the present invention, I first prepare a sulphuricacid solution of 1300 Baum, introduce the same into the battery, andplace the battery on a charging circuit at a normal rate of for example10 or 15 amperes for a normal size battery of for example thirteenplates, and leave the batte on charge until the specific gravity, whichas in the meantime .fallen, is agaln brought to 1300 Baum.

The battery is then discharged and again charged at the same rate anduntil the electrolyte reaches 1 300 Baum. The battery is then drainedand the elements are taken out and thoroughly washed with hard water.

After replacement of the batte elements, the battery is ready for the eectrolyte embodying the invention and in preparing this electrol be Imake asolution of 2 ounces of pow ered alum (aluminum-potassiumsulphate) in 1 pint of hard water and pour the solution into the batterycells and then recharge the battery at the normal rate mentioned aboveand until the electrolyte shows a test of 1150 to 1200 specific gravity(Baum). The battery is then ready to be put into service and whenpractical y fully discharged the electrolyte will have a specificgravity of between 800 and 900 (Baum). I

I have found that an electrolyte prepared as above will withstand heavycharging and will be hi hly eflicient on discharge, and have also oundthat the same will preserve rather than deteriorate the active materialof the battery grids and will likewise preserve the battery separatorswhere these ole- I mesons ments are made of wood. Also theelectroaluminum-potassium sulphate as one of its lyte will have nodeteriorating action on ingredients.

rubber jars or other ports and will not cor- 2. A storage batteryelectrolyte compris- I'odle metal or be injurious to the clothing if inga solution of approximately two ounces 5 spilled thereon. ofaluminum-potassium sulphate in one pint Homing thus described theinvention, what of hard water. i is cleimeol as new is: In testimonywhereof I afi): m signature. 15

LA storage battery electrolyte including EARL J. RUE a [the]v

